For Samsung For Huawei For Xiaomi For OPPO Battery Charger Android Mobile Phone Battery Activation PCB Test Board Features: Easy to use, fasten the connection and start using Battery Activation Charging Maintenance Advanced design, safety, fast charging, accurate short circuit, judgment ability for you to screen a variety of bad batteries greatly saving your precious time. Intelligent automatic recognition of the direction function. no need to pay attention to positive and negative, directly buckle to use. Suitable for various models, such as For iPhone iPad Samsung Xiaomi Huawei OPPO VIVO Apple Watch Redmi Lenovo Meizu Sony HTC Usage Tips: 1: The input voltage shall not exceed 5V 2: Aduptive fast charing function 3:initiative charge status Indlcator 4:Automatic igpht Color change when fully Charged 5:Voltage on the left screen,current on the right screen 6:Android system battery can plug or, Can charge